Patent GB-189819202-A (GB)
Title: Improvements in Machinery for Sawing, Splitting, Screening, Sorting, Arranging, and Bundling Wood, more especially applicable for the Production of Fire Wood Bundles and Fire Lighters, and in Safe Guards or Part of the same.
Inventor: GLOVER ARTHUR WILLIAM
Filed: 1898-09-09
Granted: 1899-09-09
Abstract: 19,202. Glover, A. W. Sept. 9. Sawing.-Relates to machinery for sawing, splitting, screening, sorting, arranging, and bundling wood, more especially applicable for making firewood bundles and firelighters. Fig. 1 shows a sawing-machine in side elevation. The wood to be sawn is supported by a table a mounted upon rocking levers e and actuated so as to feed the wood against the saws, by links h connected to a slotted frame g which is forced into frictional contact with the upper or underside of a small pulley i by means of a handle n, crank l, and link j. The frame g is supported, when in its middle or inoperative position, by springs. Poles or long boards, intended to be cross-cut, may be placed between brackets b projecting from the table. In a modification, the table is supported by antifriction rollers having toothed central parts engaging with racks on the table, or machine bed, or both. An arrangement for screening out the short or waste pieces of bark, dust, and the like from the cut pieces of wood is shown in Fig. 11, and comprises a series of polygonal rollers b rotating in the same direction and formed with circumferential grooves within which thin indented discs d are placed, or thin steel plates may be used instead of the discs. The sticks, after being sorted, are arranged parallel to one another ready for bundling by a modified form of the machine described in Specification No. 13,962, A.D. 1892, the sticks being discharged by a rapidlytravelling band into compartments formed by a fixed cylindrical plate and a series of radial partitions, fitted within a drum which is concentric with the plate and rotates slowly. The sticks are arranged in parallel order by a reciprocating or oscillating curved plate actuated by means of an eccentric. Fig. 16 shows an arrangement of guards for use with circular saws. A forked block a, a<1> is mounted adjustably upon a horizontal shaft b, which is situated vertically above the shaft of the saw S, and is carried by a rotary rod d fitted within the end of a standard e; the rod d is adjustable vertically so as to adapt the guards to saws of various sizes. A curved tilting-guard i is adjustably hinged at g to the block a, a', and protects the upper part of the saw, and a curved shield k, k<1>, pivoted at n to a sliding bracket h, protects the front portion of the saw. The shield k, k<1> may be formed in one piece or in two pieces hinged together as shown in Fig. 1, or arranged so that one part may slide over the other part and be adjusted by means of a nut. The back portion of the saw is protected by two or more curved guards o, p, hinged together at q, the guard p being adjustably held between clamping-plates u, v. The guards o, p may be strengthened by means of a slotted arm 2 hinged to the block a, a<1> at 4. The guard i and the block a, a' may be formed as one piece. A modified arrangement of guards for saws of moderate diameter comprises two double-side guards and a flat guard for the back portion of a saw, all hinged to an adjustable horizontal bar ; a straight guard fitted adjustably to the bar protects the front portion of the saw down to the level of the top of the timber which is to be sawn.